package com.gshrms.common.utils;

import java.lang.management.ManagementFactory;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.time.*;
import java.time.format.DateTimeFormatter;
import java.time.temporal.ChronoUnit;
import java.time.temporal.TemporalAdjusters;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.Date;
import java.util.List;

import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang3.time.DateFormatUtils;

/**
 * 时间工具类
 *
 * @author ruoyi
 */
@Slf4j
public class DateUtils extends org.apache.commons.lang3.time.DateUtils {
    public static String YYYY = "yyyy";

    public static String YYYY_MM = "yyyy-MM";

    public static String YYYY_MM_DD = "yyyy-MM-dd";

    public static String YYYYMMDDHHMMSS = "yyyyMMddHHmmss";

    public static String YYYY_MM_DD_HH_MM_SS = "yyyy-MM-dd HH:mm:ss";
    public static String HH_MM = "HH:mm";

    private static String[] parsePatterns = {
            "yyyy-MM-dd", "yyyy-MM-dd HH:mm:ss", "yyyy-MM-dd HH:mm", "yyyy-MM",
            "yyyy/MM/dd", "yyyy/MM/dd HH:mm:ss", "yyyy/MM/dd HH:mm", "yyyy/MM",
            "yyyy.MM.dd", "yyyy.MM.dd HH:mm:ss", "yyyy.MM.dd HH:mm", "yyyy.MM"};

    /**
     * 获取当前Date型日期
     *
     * @return Date() 当前日期
     */
    public static Date getNowDate() {
        return new Date();
    }

    /**
     * 获取当前日期, 默认格式为yyyy-MM-dd
     *
     * @return String
     */
    public static String getDate() {
        return dateTimeNow(YYYY_MM_DD);
    }

    public static final String getTime() {
        return dateTimeNow(YYYY_MM_DD_HH_MM_SS);
    }

    public static final String dateTimeNow() {
        return dateTimeNow(YYYYMMDDHHMMSS);
    }

    public static final String dateTimeNow(final String format) {
        return parseDateToStr(format, new Date());
    }

    public static final String dateTime(final Date date) {
        return parseDateToStr(YYYY_MM_DD, date);
    }

    public static final String parseDateToStr(final String format, final Date date) {
        return new SimpleDateFormat(format).format(date);
    }

    public static final Date dateTime(final String format, final String ts) {
        try {
            return new SimpleDateFormat(format).parse(ts);
        } catch (ParseException e) {
            throw new RuntimeException(e);
        }
    }

    /**
     * 日期路径 即年/月/日 如2018/08/08
     */
    public static final String datePath() {
        Date now = new Date();
        return DateFormatUtils.format(now, "yyyy/MM/dd");
    }

    /**
     * 日期路径 即年/月/日 如20180808
     */
    public static final String dateTime() {
        Date now = new Date();
        return DateFormatUtils.format(now, "yyyyMMdd");
    }
    public static final String dateTime(Date date,String pattern) {
        return DateFormatUtils.format(date, pattern);
    }

    /**
     * 日期型字符串转化为日期 格式
     */
    public static Date parseDate(Object str) {
        if (str == null) {
            return null;
        }
        try {
            return parseDate(str.toString(), parsePatterns);
        } catch (ParseException e) {
            return null;
        }
    }

    /**
     * 获取服务器启动时间
     */
    public static Date getServerStartDate() {
        long time = ManagementFactory.getRuntimeMXBean().getStartTime();
        return new Date(time);
    }

    /**
     * 计算相差天数
     */
    public static int differentDaysByMillisecond(Date date1, Date date2) {
        return Math.abs((int) ((date2.getTime() - date1.getTime()) / (1000 * 3600 * 24)));
    }

    /**
     * 计算时间差
     *
     * @param endDate   最后时间
     * @param startTime 开始时间
     * @return 时间差（天/小时/分钟）
     */
    public static String timeDistance(Date endDate, Date startTime) {
        long nd = 1000 * 24 * 60 * 60;
        long nh = 1000 * 60 * 60;
        long nm = 1000 * 60;
        // long ns = 1000;
        // 获得两个时间的毫秒时间差异
        long diff = endDate.getTime() - startTime.getTime();
        // 计算差多少天
        long day = diff / nd;
        // 计算差多少小时
        long hour = diff % nd / nh;
        // 计算差多少分钟
        long min = diff % nd % nh / nm;
        // 计算差多少秒//输出结果
        // long sec = diff % nd % nh % nm / ns;
        return day + "天" + hour + "小时" + min + "分钟";
    }

    /**
     * 计算时间差
     *
     * @param endDate   最后时间
     * @param startTime 开始时间
     * @return 时间差（分钟）
     */
    public static long minutesDistance(Date endDate, Date startTime) {
        long nd = 1000 * 24 * 60 * 60;
        long nh = 1000 * 60 * 60;
        long nm = 1000 * 60;
        // long ns = 1000;
        // 获得两个时间的毫秒时间差异
        long diff = endDate.getTime() - startTime.getTime();

        // 计算差多少分钟
        long min = diff / nm;
        return min;
    }
    public static long minutesDistance(LocalDateTime endDate, LocalDateTime startTime) {
        return Duration.between(endDate, startTime).toMinutes();
    }
    /**
     * 计算时间差
     *
     * @param endTime   最后时间
     * @param startTime 开始时间
     * @return 时间差（分钟）
     */
    public static long secondsDistance(Date endTime, Date startTime) {
        long nd = 1000 * 24 * 60 * 60;
        long nh = 1000 * 60 * 60;
        long nm = 1000 * 60;
        long ns = 1000;
        // 获得两个时间的毫秒时间差异
        long diff = endTime.getTime() - startTime.getTime();
        // 计算差多少秒
        long second = diff / ns;
        return second;
    }
    public static long secondsDistance(LocalDateTime endTime, LocalDateTime startTime) {
        return Duration.between(endTime, startTime).getSeconds();
    }
    /**
     * 增加 LocalDateTime ==> Date
     */
    public static Date toDate(LocalDateTime temporalAccessor) {
        ZonedDateTime zdt = temporalAccessor.atZone(ZoneId.systemDefault());
        return Date.from(zdt.toInstant());
    }

    /**
     * 增加 LocalDate ==> Date
     */
    public static Date toDate(LocalDate temporalAccessor) {
        LocalDateTime localDateTime = LocalDateTime.of(temporalAccessor, LocalTime.of(0, 0, 0));
        ZonedDateTime zdt = localDateTime.atZone(ZoneId.systemDefault());
        return Date.from(zdt.toInstant());
    }

    /**
     * @Description:
     * @param date yyyy-mm-dd格式
     * @param time  hh:mm
     * @author guolei
     * @date 2025/2/10 16:52
     *
     *
     **/
    public static Date toDate(LocalDate date, String time) {
        String dateStr=DateUtils.parseDateToStr(DateUtils.YYYY_MM_DD,DateUtils.toDate(date));
        return DateUtils.dateTime(DateUtils.YYYY_MM_DD_HH_MM_SS,dateStr+" "+time);
    }

    /**
     * @Description: 增加 Date ==> LocalDate
     *
     * @author guolei
     * @date 2025/1/17 17:32
     *
     *
     **/

    public static LocalDate toLocalDate(Date date) {
        LocalDate localDate = date.toInstant().atZone(ZoneId.systemDefault()).toLocalDate();
        return localDate;
    }

    public static LocalDateTime toLocalDateTime(Date date) {
        LocalDateTime localDateTime = date.toInstant().atZone(ZoneId.systemDefault()).toLocalDateTime();
        return localDateTime;
    }

    public static LocalDateTime toLocalDateTime(String date) {
        if(StringUtils.isEmpty(date)) {
            return null;
        }
        try {
            return LocalDateTime.parse(date, DateTimeFormatter.ofPattern(DateUtils.YYYY_MM_DD_HH_MM_SS));
        } catch (Exception e) {
            e.printStackTrace();
            log.error(e.getMessage());
        }
        return null;
    }

    /**
     * @Description:String->LocalDate
     *
     * @author guolei
     * @date 2025/1/21 17:45
     *
     *
     **/
    public static LocalDate toLocalDate(String date) {
        if(StringUtils.isEmpty(date)) {
            return null;
        }
        try {
            return LocalDate.parse(date, DateTimeFormatter.ofPattern(DateUtils.YYYY_MM_DD));
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }
    public static String localDate2String(LocalDate localDate,String pattern) {
        DateTimeFormatter formatter = DateTimeFormatter.ofPattern(pattern);
        // 使用formatter将LocalDate转换为字符串
        return localDate.format(formatter);
    }

    public static String localTime2String(LocalTime localtime,String pattern) {
        DateTimeFormatter formatter = DateTimeFormatter.ofPattern(pattern);
        // 使用formatter将LocalDate转换为字符串
        return localtime.format(formatter);
    }

    /**
     * @Description: 当年最后一天
     *
     * @author guolei
     * @date 2025/1/17 17:32
     *
     *
     **/

    public static Date getLastDayOfYear() {
        LocalDate lastDayOfYear = LocalDate.now().withDayOfYear(LocalDate.now().lengthOfYear());
        return DateUtils.toDate(lastDayOfYear);
    }

    //获取当月最后一天
    public static Date getLastDayOfMonth(Date date){
        Calendar calendar = Calendar.getInstance();
        calendar.setTime(date);
        // 将日期设置为当月最后一天
        calendar.set(Calendar.DAY_OF_MONTH, calendar.getActualMaximum(Calendar.DAY_OF_MONTH));
        Date endDate = calendar.getTime();
        Date today=DateUtils.getNowDate();
        if(endDate.after(today)){
            endDate=today;
        }
        return endDate;
    }

    //获取当月最后一天
    public static LocalDate getLastDayOfMonth(LocalDate today){
        LocalDate lastDayOfCurrentMonth = today.with(TemporalAdjusters.lastDayOfMonth());
        return lastDayOfCurrentMonth;
    }


    /**
     * @Description: 计算两个日期相差年份
     * 四舍五入取整
     * @author guolei
     * @date 2025/1/17 17:32
     *
     **/
    public static double getYearBetweenDates(LocalDate startDate, LocalDate endDate) {
        long totalDays = ChronoUnit.DAYS.between(startDate, endDate);
        return totalDays / 365.25; // 使用平均年长365.25天（考虑到闰年）
    }
    //获取所有天数
    public static List<String> getDateOfMonth(Date startDate, Date endDate) {

        List<String> dates = new ArrayList<>();

        // 使用Calendar来处理日期
        Calendar startCal = Calendar.getInstance();
        startCal.setTime(startDate);

        Calendar endCal = Calendar.getInstance();
        endCal.setTime(endDate);

        // 遍历startDate到endDate之间的每一天
        while (!startCal.after(endCal)) {
            dates.add(DateUtils.dateTime(startCal.getTime(),DateUtils.YYYY_MM_DD));
            startCal.add(Calendar.DATE, 1); // 增加一天
        }
        return dates;
    }







}
